Gas heater



July 21-, 1925. 1,546,945 I A. B. SHARPE GAS HEATER Filed April 14- 1924 Z-Sheets-Sheet 1 FIG. 1

Id 28 7 fit Patented July 21, 1925.

UNITED rareur ornce.

ALEXANDER B. sneer-E, or smmmav mn, onro, assrsnon 'ro THE oHIo Foams-Y nn nanuraoruf'anve '00., or s'rfEUBENvItLE, 01110, A oonroaarr'on or OHIO.

u eas Herman.

a plication filed Apr-i1 14, 1924. Serial No. 706,423.

1/ 0 all [mm it may nobwera:

Be it known that 1-, ALEXANDER B3.;SI;I;AR1E, a citizen of the United States, and resident of Steubenville, in thecounty of Jefiersan andSFtate 'of @1110, {have invented a new and useful Improvement in Gas Heaters; and I do hereby declare the following to be a full, clear, and exact description thereof. 1

My invention relates to gas-heaters and more especially to that type of heater in which tubular radiants are employed, sup ported on a perforated plate above a burner, together with a fire-back all enclosed or sup ported in an iron frame, the radiants being formed of a material which becomes incandescent, and in connection with the fireback a very hot fire being obtained which gives a maximum heat for the amount of gas consumed.

The object of my invention is to provide convenient and efficient means for supporting the plate which carries the radiants, and also a rigid and firm support for the fireback.

In the accompanying drawings, Fig. 1 is a front view of my improved heater; Fig. 2 is a view of the lower portion of the heater showing the hearth-plate removed, and the lower cross-bar cut away; Fig. 3 is a section on the line 33, Fig. 1; Fig. 4 is a section on the line M, Fig. 1; Fig. 5 is a view similar to Fig. 4 with the hearth plate and radiant supporting plate removed; Fig. 6 is a plan View of the radiant supporting plate removed; Fig. 7 is a front view of the burner removed; Fig. 8 is a top view of the burner; and Fig. 9 is an enlarged detail of the manner of securing the plate which supports the fire-back in position.

I11 the drawings, the numeral 2 designates a suitable frame or casting which may be of any suitable design, said frame having the legs 3 secured thereto. Extending across the lower end of the frame 2. is the crosspiece 4 which is secured by screws 5 to the frame.

The back-wall 6 of the frame 2 is preferably formed of sheet-metal bent to form the side plates 7 which are flanged as at 8, through which the screws 9 pass which connect the casing to the lugs 10 formed on the frame 2. V

A supplemental back-wall 11 is provided, said wall being likewise made of sheetmetal, and said wall is supported by having its lower end fitting in 'a groove 12 formed by the upturned portion 13 at the lower end of the {back-wall 6. The supplemental back wall 11 is bent on itself as at 14 to form a ledge or shelf to support the ire-back 15 made of suitable refractory material.

The fire-back 15 is held from falling forward by engaging the flanges 16 on the frame 2. In this manner the fire-back is firmly and securely held in position, and it is entirely free from the support from the burner-plate hereafter described.

The burner-plate 17 is provided with the openings 18 and along the front is the projecting ledge 19 provided with the lugs 20. Projecting downwardly from the ledge 19 are the lugs 21 provided with screw-Opel ings, and screws 22 passing through said openings and through openings in the crossbar 23 of the frame 2 securely holding the burner-plate in position.

A hearth-plate 24 has its lower edge engaging a shoulder 25 on the cross-piece 4 and screws 26 passing through the upper edge of the hearth-plate engaging the screw holes in the lugs 20 of the burner plate, and in this manner the hearth-plate is firmly supported.

The burner 27 may be of any suitable construction, and said burner is provided with the lugs 28 with screw-openings 29 so that when the screws 30 are applied, the burner is secured to the cross-bar 23, screw openings being provided in said cross-bar to receive the screws 30.

The burner has the customary openings 31 which register with the: openings 18 in the burner-plate 17 and the combined air and gaspass up through said openings into the tubular radiants 32, which are supported in the ordinary manner on the burner-plate 17.

In order to hold the radiants in position, lugs 33 are provided on the burner plate.

The customary bail 34: may be employed to hold the upper ends of the radiants in position, said plate being hinged in any suitable manner to the frame 2.

Mat I claim is:

1. In a gas-heater, the combination with a suitable frame and a sheet metal back wall connected thereto, the lower end of said back-Wall being turned upwardly, asheet-metal supplemental back-wall with its lower end fitting in the groove formed by said upturned portion of said back-wall,

said supplemental back-wall being bent on itself to form a ledge, and a fire-back resting on said ledge.

2. In a gas heater, the combination With a frame and a backwall, of a fire-back, a supplemental sheet metal backwall, a support for said fire-back con'lprising a projection formed by bending said supplemental back- Wall upon itself, and stiffening and supporting means for said supplemental backwall.

3. In a gas heater, the combination with a suitable front frame of cast metal, of a separately formed hackwall structure secured thereto, a cross bar secured to the front frame adjacent to the lower portion thereof and to the front of the hackwall structure, and means for securing a burner plate to said cross bar.

7 4. In a gas heater, a sheet metal backwall structure, a fireback supported by said structure, forwardly extending Wing portions on said structure, a cast front frame, a cross bar disposed across the lower portion of said frame and to the front of said fireback, means for connecting said Wing portions to said front frame, and a burner connected to said cross bar.

In testimony whereof I, the said ALEX- ANnnn B. Srmnrn, have hereunto set my hand.

ALEX. B. SI-IARPE. 

